Water-gage for boilers.



F. S. YOUNG.

WATER GAGE FOR BOILERS.

APPLICATION FILED IIIAY 31| 1916.

UNlT @AE FATNT FREDRIC S. YOUNG, OF LOS ANGELES, CALIFORNIA.

WATER-GAGE FOR BOILERS.

Laeasis.

To all whom t may concern.'

Be it. known that I, Fiennnrc S. YOUNG, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have inventedV new and useful Improvements in Tater-Gages for Boilers, of which the following is a speciiication.

This invention relates to a water gage for use with tubular boilers.

It is an obj ect of this invention to provide y a water gage adapted to be mounted upon and in operation with a steam boiler and which may be detachably secured in place without draining the boiler or plugging the gage pipe openings.

Another object of this invention is to provide simple means'for discontinuing the circulation of water romthe boileiI to the gage and thus facilitating the removal ofthe gage without thevleakage of the water from the boiler or the necessity of vshutting the boiler down while the gage is being repaired.

It often happens that the water gage glasses are broken by the action of the heat within theboilerand it is necessary to replace such broken glass. Heretofore, this re A placement has necessitated the removal of the entire gage and the plugging of the communicating passages from the boiler While the device was being repaired. It is an object of this invention to provide simple means for discontinuing the use of the gage while being repaired and allowing the ready removal of the damaged glass without intertering with the operation of the boiler.

Other objects will appear hereinafter.

The invention is illustrated in the accompanying drawings in which:

Figure 1 is a view in front elevation of the water gage and shows it as operatively mounted between its cut-ofi'1 valves.

Fig. 2 is a view in side elevation showing the device as illustrated in Fig. 1 and further shows it as applied to the end sheet of a boiler.

Fig. 3 is a view in longitudinal vertical section through one of the cut-olf valves as seen on the line 3 3 of Fig. 1.

Fig. 4 is a view in horizontal transverse section as seen on the line 4--4 of Fig. 1.

Referring more particularly to the drawings, 10 indicates an end sheet of a boiler which is here shown as provided with a pair of vertically alined threaded openings 11 and 12. The openings 11 and 12 are prol Specication of Letters Patent.

Patented J une 12, 191'?.

Application filed May 31, 1916. Serial No. 100,903.

vided for the reception of an upper cut-0fi1 valve 14: and a lower cuteoii' valve 15, both of which valves are horizontally disposed and are in parallel alinement with each other.

rlhe lower valve 15 is particularly illustrated in Fig. 3 of the drawings, in which it is shown in vertical section. In this view it will be seen that the valve is provided with a cylindrical valve body 1G threaded at its outer end to engage the openings 11 and 12 in the boiler. Formed approximately midway of the valve body is an enlarged portion 17 which is substantially spherical in shape and is provided with a pair of water gage bolting lugs 18 and 19. Formed beneath the enlarged portion is a knipple 20 which has a threaded bore 21 communicating with a spherical opening 22 formed in the center of the enlarged portion v17 andfcommunicates with the water` gage 23 by means of vertically disposed communicating passage 24. The threaded bore21 is normally closed by a screw-plug 21. Extending-in horizontal alinement withthe bodyJ portion 16 is a cylindrical outer end 25 which is threaded to 'accommodate a packing .cap $26 provided to hold. a stutiing gland 27 in place within a cylindrical bore 28 which communicates with'the chamber 22 by means oi a threaded bore 29. The bore 29 is adapted to receive the threaded end of a valve stem 30 rotated toward and away from a conical valve seat 31 formed at the end of a communicating bore 32 leading from the boiler to the spherical chamber 22. The valve stem 30 is formed at its inner end with a conical valve portion 33. A collar 34k extends around the stem within the enlarged bore 28 and prevents the leakage of water and steam from the gage. The end of the valve stem is fitted with a hand-wheel 35 with which it 1s intended to vbe rotated. The construction of the cut-off valve 14 is identical with the formation of the valve 15 as here described, save that the parts are inverted. The threaded bore 21 within the nipple is closed by means of a screw 36.

The gage 23 is disposed between the two valve members and secured by means of bolts 37 and 38 which engage the bolting lugs 18 and 19 as well as complementary lug members 39 and 40 upon the opposite ends of the gage casting 41. The gage casting 41 is adapted to be positioned vertically between the two valves and consists 0f a back portion 4:2 and an angular front portion 43 between which a water space 44 occurs. The water space 44 is in communication with the openings 24 leading to the spherical chambers 22 within the valves. The water space 44 is closed at its opposite ends by means of gage glasses 45 and 46 which are positioned within recesses 47 and 4S formed within the angular faces oi' the casting member 41. The gage glasses are secured in place by castings 49 and 50 which bolt upon the casting member 41 by cap screws 51 and hold the glasses in a water-tight position. It will be observed that the glasses are disposed at an angle to each other of approximately ninety degrees so that observation may be made through them with slight difliculty, openings 52 and 53 being formed through the members 49 and 50 to allow the Water within the gage to be observed.

When the water gage leaks or the valve observation glasses are broken, it is necessary to immediately repair them as water is continually circulating through the gage when the boiler is operated. In case of repair, the cut-on valves 14 and 15 are closed by manipulating the hand-wheels to screw the valve portion 33 upon the valve seat 31 and thus discontinue circulation of water through the gage. The gage may now be removed by unbolting the complementary ears at the ends of the gage and the cut-olz` valves, by the bolts 37 and 38. The gage may then be repaired by removing the plate Copies of this patent may be obtained for members 49 and 50 and thus allowing access to the gage glasses 45 and 46. After suitable repairs have been made, the device may be again positioned between the cut-o valves and drawn against the ears formed thereon to eil'ect a water-tight fit between the parts, and the valves open to restore the water circulation through the gage.

It will thus be seen that the water gage here provided may be readily removed or repaired without the interruption of the operation of the boiler and without danger of serious leakage through the damaged water gage.

I claim:

A water gage comprising an upper horizontally disposed communicating pipe, a lower communicating pipe parallel therewith, upper and lower eut-on' valves adapted to obstruct each of said pipes respectively, a vertically disposed gage member connectively united toveach of said cut-off valves, means for detachably mounting said gage member in relation to said valves, said means comprising a pair of oppositely extending apertured fastening lugs on each end of said gage member, corresponding pairs of lugs on said valves, and bolts securing said pairs of lugs together.

In testimony whereof I have signed my name to this specification.

FREDRIC S. YOUNG.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

